I found out that it works if you start PR manually from the C:\Program Files (x86)\Project Reality\Project Reality BF2\mods\pr\bin\ folder or if you set the8: Unable to find root BF2 Directory. Please reinstall Project Reality: BF2
property of the link toStart in:
."C:\Program Files (x86)\Project Reality\Project Reality BF2\mods\pr\bin"
